Table 6. Overall diatom abundance and relative contribution of the dominant species or assemblages at Hole 1076A.
Core, section, interval
Depth (mbsf)
Overall abundance Overall preservation Thalassionema nitzschioides (%) Chaetoceros resting spores (%) Skeletonema costatum Thalassiosira spp. Freshwater assemblage (%) Phytoliths Silicoflagellates
175-1076A-









1H-CC 4.75 A-C 2.0 33.3 25.8 T T 34.8
T
2H-CC 13.21 A 2.0 19.1 47.8 T R 16.5
T
3H-CC 24.29 T 1.0


T
T
4H-CC 33.62 T 1.0 F R

R

5H-CC 43.43 A 2.0 56.4 14.9 T T 18.8
T
6H-CC 52.81 C 2.5 37.9 29.5 21.1 T 5.2

7H-CC 62.46 A 2.5 52.5 32.5 T T 3.8 T
8H-CC 71.84 C 2.0 29.8 54.6 T T 9.2
T
9H-CC 81.52 A 2.0 53.9 20.9
T 10.4

10H-CC 90.89 A 2.0 36.7 33.3 11.9 R 8.1
T
11H-CC 100.58 T 1.0 T



T
12H-CC 109.89 A 2.0 40.1 50.1 T R 3.2 T T
13H-CC 119.85 F-C 2.0 54.4 33.3
T 5.5 T
14H-CC 129.12 T 1.0 T





15H-CC 138.65 T 1.0 T T

T

16H-CC 147.90 R 1.0 F T


T
17H-CC 157.86 A 1.5 38.3 45.8 T T 9.3 T T
18H-CC 166.79 A 2.0 53.8 38.8
R 0.2
T
19H-CC 176.58 A 2.0 56.3 31.7 T R 6.7 T T
20H-CC 185.98 C 1.5 32.6 31.9 T 25.3 4.5
R
21H-CC 195.87 C 1.0 61.4 27.9
R 1.4 T T
22H-CC 204.93 C 1.0 45.1 37.0 T 6.4 3.3

Notes: Includes diatom upwelling and freshwater assemblages, opaline phytoliths, and silicoflagellates (in percentages). Abundance: A = abundant; T = trace; C = common; F = few; and R = rare. Preservation: G = good; M = moderate; and P = poor.